{
  "abstract": "The Compressed Baryonic Matter (CBM) Experiment at FAIR aims to investigate strongly interacting matter in a regime of high net-baryon density and moderate temperature using a fixed-target setup. Its Micro Vertex Detector (MVD) employs CMOS Monolithic Active Pixel Sensor (MAPS), called MIMOSIS, to achieve high-precision tracking and vertex reconstruction close to the interaction point. MAPS offer high spatial resolution, a minimal material budget, and tolerance against radiation, which makes them well-suited candidates for vertexing and tracking in the harsh CBM environment. MIMOSIS features 1024 × 504 pixels with a frame time of 5 μ s and a spatial precision of about 5–6 μ m. The sensors are required to withstand a total ionizing dose (TID) of about 5 MRad and Non-Ionizing Energy Loss (NIEL) equivalent fluences of approximately 7 × 1 0 13 n eq /cm 2 per year of CBM operation. Various prototypes have been developed through a joint R&D effort by IPHC Strasbourg, Goethe University Frankfurt and GSI Darmstadt. This contribution presents the MVD detector concept and results from radiation-tolerance measurements performed on MIMOSIS sensors. We demonstrate that AC-coupled p-stop pixel variant sustains efficiency above 99% and spatial precision of 5–6 μ m up to the combined target dose of CBM (10 14 n eq /cm 2 + 5 MRad), with the 50 μ m-thick epitaxial variant offering a wider operational threshold margin. As the 50- μ m epitaxial is not a production-standard wafer option, the 25 μ m-thick epitaxial p-stop variant is being considered for the pre-production of the MVD, which equally meets the CBM requirement.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 39,
  "authors": [
    {
      "name": "Ajit Kumar"
    },
    {
      "name": "Ali-Murteza Altingun"
    },
    {
      "name": "Julio Andary"
    },
    {
      "name": "Benedict Arnoldi-Meadows"
    },
    {
      "name": "Jerome Baudot"
    },
    {
      "name": "Gregory Bertolone"
    },
    {
      "name": "Auguste Besson"
    },
    {
      "name": "Norbert Bialas"
    },
    {
      "name": "Christopher Braun"
    },
    {
      "name": "Roma Bugiel"
    },
    {
      "name": "Gilles Claus"
    },
    {
      "name": "Claude Colledani"
    },
    {
      "name": "Hasan Darwish"
    },
    {
      "name": "Michael Deveaux"
    },
    {
      "name": "Andrei Dorokhov"
    },
    {
      "name": "Guy Dozière"
    },
    {
      "name": "Ziad El Bitar"
    },
    {
      "name": "Ingo Fröhlich"
    },
    {
      "name": "Mathieu Goffe"
    },
    {
      "name": "Benedikt Gutsche"
    },
    {
      "name": "Abdelkader Himmi"
    },
    {
      "name": "Christine Hu-Guo"
    },
    {
      "name": "Kimmo Jaaskelainen"
    },
    {
      "name": "Oliver Keller"
    },
    {
      "name": "Michal Koziel"
    },
    {
      "name": "Franz Matejcek"
    },
    {
      "name": "Jan Michel"
    },
    {
      "name": "Frederic Morel"
    },
    {
      "name": "Christian Müntz"
    },
    {
      "name": "Hung Pham"
    },
    {
      "name": "Christian Joachim Schmidt"
    },
    {
      "name": "Stefan Schreiber"
    },
    {
      "name": "Matthieu Specht"
    },
    {
      "name": "Joachim Stroth"
    },
    {
      "name": "Eva-Dhidho Taka"
    },
    {
      "name": "Isabelle Valin"
    },
    {
      "name": "Roland Weirich"
    },
    {
      "name": "Marc Winter"
    },
    {
      "name": "Yüe Zhao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/eqbd90m9e2q88.bib",
  "cited_by": 0,
  "doi": "10.1016/j.nima.2026.171996",
  "fulltext_url": null,
  "id": "eqbd90m9e2q88",
  "issns": [],
  "landing_url": "https://hal.science/hal-05746410v1",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.phys"
    ],
    [
      "hal",
      "2.phys.phys.phys-ins-det"
    ],
    [
      "openalex",
      "3106|Particle Detector Development and Performance"
    ]
  ],
  "openalex": "W7204917546",
  "pdf_url": "https://www.sciencedirect.com/science/article/pii/S0168900226007229/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/eqbd90m9e2q88.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:33Z",
      "native_id": "hal-05746410",
      "source": "hal",
      "url": "https://hal.science/hal-05746410v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:2.phys.phys.phys-ins-det",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "The CBM Micro-Vertex Detector: Toward production readiness with MIMOSIS MAPS",
  "title_text": "The CBM Micro-Vertex Detector: Toward production readiness with MIMOSIS MAPS",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:33Z",
  "url": "https://research.draconitic.com/paper/eqbd90m9e2q88",
  "venue": "Nucl.Instrum.Meth.A",
  "versions": []
}